Blockchain Info

This page explains the steps used in Drawing with Blockchain blocks. To understand the steps Arena takes to determine the final draw, go through this wizard by clicking on the steps above! You can change the block number by clicking on the edit button next to it or visit the block's official page by clicking on the Etherscan icon.


Blockchain number: 20095565 Edit

Block details: - Verify at Etherscan
Block's hash: 0x49eff857c18c73a2612fcd841521731df686ce028d3f791bc3b835469f209715
Previous block's hash: 0x9116f56048b01cb5a2ff46f0eade449ffbde2891ee5d060ccfeae46d206e4a4c
Block's Nonce is 0, we use StateRoot instead!!!: 0x1bda44ccf58f884d6da06956be505692de99f00045d44f7c053561136f3ded72

Note: This blockchain number is not used at any UWW organized events.
If this blockchain number was used at an event organized by a National Federation, ask the local secretatiat team to open this Blockchain Info page from the Arena server where the draw was generated to get a complete analysis of this block.
On the next page you can still see the method how the draw numbers were extracted from this block.

Next Step >>

Conversion

At this phase Arena converts the hash values into draw numbers. Since the hash numbers are random and unpredictable, the final number list will also be such a random list.

Step 1

Take the block details and concatenate them as Block's hash + Previous block's hash + Block's Nonce (or StateRoot if Nonce is 0) without the leading "0x" string.

Result: 49eff857c18c73a2612fcd841521731df686ce028d3f791bc3b835469f209715 9116f56048b01cb5a2ff46f0eade449ffbde2891ee5d060ccfeae46d206e4a4c 1bda44ccf58f884d6da06956be505692de99f00045d44f7c053561136f3ded72

Step 2

Divide this long string by 2 units

49 ef f8 57 c1 8c 73 a2 61 2f cd 84 15 21 73 1d f6 86 ce 02 8d 3f 79 1b c3 b8 35 46 9f 20 97 15 91 16 f5 60 48 b0 1c b5 a2 ff 46 f0 ea de 44 9f fb de 28 91 ee 5d 06 0c cf ea e4 6d 20 6e 4a 4c 1b da 44 cc f5 8f 88 4d 6d a0 69 56 be 50 56 92 de 99 f0 00 45 d4 4f 7c 05 35 61 13 6f 3d ed 72

Step 3

Convert the hexadecimal numbers to decimal ones (eg. 49[hex] => 4 * 16 + 9 = 73[decimal]).
Note: You can verify this via https://www.duplichecker.com/hex-to-decimal.php. Click here to copy the hexadecimal numbers to your clipboard and then paste them into duplichecker's window (text box on the left side).

73 239 248 87 193 140 115 162 97 47 205 132 21 33 115 29 246 134 206 2 141 63 121 27 195 184 53 70 159 32 151 21 145 22 245 96 72 176 28 181 162 255 70 240 234 222 68 159 251 222 40 145 238 93 6 12 207 234 228 109 32 110 74 76 27 218 68 204 245 143 136 77 109 160 105 86 190 80 86 146 222 153 240 0 69 212 79 124 5 53 97 19 111 61 237 114

Step 4

Search for duplicates and drop every other than the first occurrence

73 239 248 87 193 140 115 162 97 47 205 132 21 33 115 29 246 134 206 2 141 63 121 27 195 184 53 70 159 32 151 21 145 22 245 96 72 176 28 181 162 255 70 240 234 222 68 159 251 222 40 145 238 93 6 12 207 234 228 109 32 110 74 76 27 218 68 204 245 143 136 77 109 160 105 86 190 80 86 146 222 153 240 0 69 212 79 124 5 53 97 19 111 61 237 114

The result is: (hover over the numbers below to see their position in the uncleared list)
73 239 248 87 193 140 115 162 97 47 205 132 21 33 29 246 134 206 2 141 63 121 27 195 184 53 70 159 32 151 145 22 245 96 72 176 28 181 255 240 234 222 68 251 40 238 93 6 12 207 228 109 110 74 76 218 204 143 136 77 160 105 86 190 80 146 153 0 69 212 79 124 5 19 111 61 237 114
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